package com.itheima.a01staticdemo02;
public class ArrutilTest {
    public static void main(String[] args) {
      //测试工具类的二个方法是否正确
        int[]arr={1,2,3,4,5};
        String str = Arrutil.pirintArr(arr);
        System.out.println(str);
        double[]arr1={1.1,2.2,3.3,4.4,5.5};
        double avg = Arrutil.getAverage(arr1);
        System.out.println(avg);
    }
}
